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Finding the Fourth Proportional to 791,408.28, 1,092,198.84 and 447,276

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Solution

The fourth proportional to 791,408.28, 1,092,198.84 and 447,276 is: 617,272.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,408.28 : 1,092,198.84 = 447,276 : x
  2. Step 2: Convert to fraction form
    791,408.28/1,092,198.84 = 447,276/x
  3. Step 3: Cross multiply
    791,408.28x = 1,092,198.84 × 447,276
  4. Step 4: Simplify right side
    791,408.28x = 488,514,328,359.84
  5. Step 5: Solve for x
    x = 488,514,328,359.84/791,408.28
  6. Step 6: Final answer
    x = 617,272.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.